1//===-- XCoreTargetObjectFile.cpp - XCore object files --------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "XCoreTargetObjectFile.h"
11#include "XCoreSubtarget.h"
12#include "llvm/MC/MCContext.h"
13#include "llvm/MC/MCSectionELF.h"
14#include "llvm/Support/ELF.h"
15#include "llvm/Target/TargetMachine.h"
16using namespace llvm;
17
18
19void XCoreTargetObjectFile::Initialize(MCContext &Ctx, const TargetMachine &TM){
20  TargetLoweringObjectFileELF::Initialize(Ctx, TM);
21
22  DataSection =
23    Ctx.getELFSection(".dp.data", ELF::SHT_PROGBITS,
24                      ELF::SHF_ALLOC | ELF::SHF_WRITE |
25                      ELF::XCORE_SHF_DP_SECTION,
26                      SectionKind::getDataRel());
27  BSSSection =
28    Ctx.getELFSection(".dp.bss", ELF::SHT_NOBITS,
29                      ELF::SHF_ALLOC | ELF::SHF_WRITE |
30                      ELF::XCORE_SHF_DP_SECTION,
31                      SectionKind::getBSS());
32
33  MergeableConst4Section =
34    Ctx.getELFSection(".cp.rodata.cst4", ELF::SHT_PROGBITS,
35                      ELF::SHF_ALLOC | ELF::SHF_MERGE |
36                      ELF::XCORE_SHF_CP_SECTION,
37                      SectionKind::getMergeableConst4());
38  MergeableConst8Section =
39    Ctx.getELFSection(".cp.rodata.cst8", ELF::SHT_PROGBITS,
40                      ELF::SHF_ALLOC | ELF::SHF_MERGE |
41                      ELF::XCORE_SHF_CP_SECTION,
42                      SectionKind::getMergeableConst8());
43  MergeableConst16Section =
44    Ctx.getELFSection(".cp.rodata.cst16", ELF::SHT_PROGBITS,
45                      ELF::SHF_ALLOC | ELF::SHF_MERGE |
46                      ELF::XCORE_SHF_CP_SECTION,
47                      SectionKind::getMergeableConst16());
48
49  // TLS globals are lowered in the backend to arrays indexed by the current
50  // thread id. After lowering they require no special handling by the linker
51  // and can be placed in the standard data / bss sections.
52  TLSDataSection = DataSection;
53  TLSBSSSection = BSSSection;
54
55  ReadOnlySection =
56    Ctx.getELFSection(".cp.rodata", ELF::SHT_PROGBITS,
57                      ELF::SHF_ALLOC |
58                      ELF::XCORE_SHF_CP_SECTION,
59                      SectionKind::getReadOnlyWithRel());
60}
61